Combination padlock



sept. 11, 1929. s. coHEN 1,728,902

COMBINAT I ON PADLO CK Filed Jan. 26 1925 Patented Sept. 17, 1929 UNITEDSTATES PATENT OFFICE srnNEY COHEN, or NEW YORK, N. Y., AssrGNoR ToDEFENDERteorico., OF NEW YORK, N. Y., A CORPORATION- or NEW YORKCOMBINATION PADLOCK Application led January rIhis invention relatesgenerally to padlooks, the invention having more particular reference toa combination padlock in which the leg or legs of the shackle is engagedby notched rings which are rotatable to different positions to releasethe shackle by aligning the notches in the various rings, the invent-ionhaving for an object the provision of a novel and improved combinationypadlock of this type whose combination may be readily changed at thewill of the owner, and which is characterized by convenience ofmanipulation of the parts in unlocking the padlock.

For further comprehension of the invention, and of the objects andadvantages thereof, reference will be had to the following descriptionand accompanying drawing, and to the appended claims in which thevarious novel features of the invention are more particularly set forth.

Fig. 1 of the drawing is a central longindinal sectional view of myimproved padook.

Fig. 2 is a face view thereof. Fig. 3 is a transversesectional viewtaken on the line 3-3 of Fig. 1.

' Fig. 4 is a like view to Fig. 1 but showing a modification.

Fig. 5 is a like view to Fig. 1 but showing a further modification.

Fig. 6 is a transverse sectional view taken on the line 6-6 of Fig. 5.

Fig. 7 is a face view showing a diiferent modification. y

As here shown my improved padlock comprises a casing 10 having acylindrical cavity in which are received a number of rings 11 that fitsnugly therein and rest freely on one another and in the said casing.The casing is closed at one end by an integral bottom member 10 and atits other end by a cap-plate 14 that has a stud 15 projecting therefromthrough the rings 11, this stud having a diminished screwthreaded tip 16that engages in a tapped aperture in the bottom member 10, the studbeing of substantially the same diameter as the bore of the rings 11.The cavity in the casing is formed with two diametrically opposedlongitudinally extending offsets 18 that receive the legs ofthe shackle,these legs 26, 1925. serial No. 4,649.

extending on opposite sides/,of thev series of rings as will beapparent. As here shown the two legs of the shackle are formed separatefrom one another and each leg comprises inner and outer sections 20 and21 respectively outer sections having a stud on its end that f Y engagesina socket in the'adj acent end of the other outer section. When theshackle is locked, the joints between the inner and outer sections areconned within bosses 14 projected from the cap 14 thereby preventing theouter sections of the two legs swinging away from one another, the caphaving apertures therein in alinement with the offsets 18 from thecavity in the casing as will be understood. The rings 11 are formed withnotches such as 27that are adapted to be brought into registry with theshackle legs when the shackle is to be released, and with flattenedsurfaces such as `28 on opposite sides to permit of adjustment of therings to release one leg of the shackle without interference with theother leg. The rings 11 have studs 30 projecting therefrom into alongitudinal slot 31 formed in one face of the easing 10, so thatadjustment of the rings may be effected. The notches 27 in the rings areso arranged that they may be brought into registry' with the shacklelegs by, selective adjustment ofthe,

studs 30 to positions with one series engaged with one wally of thesloty 31 and another series engaged with the other wall of the slot,while one or more of the rings may be arranged to have their notchesregister with the shackle legs vwhenthe studs v30 thereon are midwaybetween opposite walls of the slot 31. In the form of the rinventionshown in Fig. 4 of the drawing I employ onlyone movable shackle leg thatconsists of outer and inner sections 20 and 21 hinged together as at 22,and a fixed leg 33 that projects from the cap 14.y This leg 33 has atransverse pin 34 in its outer end that engages in notches such as 35 inthe forked end ofthe leg 21. Since roo vingtherefrom that' engages m anarcuate recess 43 in the casing 10. After'the shackle only one shackleleg projects into the casing 10, there is only about one half thenumbe-r of retaining rings 11 that are spaced from one another by theWashers 36. In this construction the tip 16 on the stud 15 is screwedinto a shallow socket in the end of the casing.

In the form of the invention 'shown in Figs. 5 and 6 of the drawing, theshackle is in the form of a one-piece member having one leg 40relatively short and extending only into anv aperture in the cap 14,lthe inner part oi the other leg 41 being arranged similarly-to the legsection 20 shown in Fig. 4, while the alternating notched rings 11 andwashers 36 are provided. The leg 41 has a stud 42 projectleg has beenfreed by proper adjustment of Vthe rings 11, the shackle can be pulledoutward until the stud-42 strikes the cap 14, when the shackle may berotated on its leg 41 to swing 'the other leg away from the cap.

A In the form of the invention shown in Fig. 7 of the drawing the samegeneral construction as in Fig. 1 is employed except that the two legs 21 of the shackle are each formed of one piece'and are united by a chain45 that may be of any desired length. As here shown these legs projectat both ends through the shackle, each projecting pair of ends beingarranged for connection to one another by 'a chain.Y

j Having thus described my invention, what I claim as new and desiretoproteet by Letters Patent of the United States is as follows 1. Acombination padlock comprising'a casing, a center stud adapted to besecured'atone end to said casing and provided at its other end with atop closure portion for said casing having spaced shackle openings, aseries of rings rotatable in said casing about said stud vand formedwith notches, a shackle having 'a pair of legs projecting into saidcasing through said openings on opposite sides of Vsaid rings and havingnotches in its legs to vreceive the edge portions of the said rings,

the bow portion-of the said 'shackle comprising a chain attached at itsends to the said legs. 2. Ay combination padlock, comprising a casing, acenter stud adapted to be secured at 'one end to said casing andprovided at its other end with a topclosure portion for said casinghaving spaced shackle openings, a series oflocking members movablymounted in said casing about'psaid stud, a shackle hav- 'ing two legsone of which is ladapted to be engaged in said casing through saidopenings independently of the other and having notches to receiveportions of said movable locking members and a flexible connectionbetween said legs. j

In testimony whereof I have affixed my signature.

SIDNEY COHEN.

